- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/04 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof - Details of piezo-electric or electrostrictive elements
Patent holdings for IPC class H01L 41/04
Total number of patents in this class: 1231
10-year publication summary
|
126
|
164
|
162
|
136
|
98
|
52
|
16
|
5
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20248 |
91 |
| Murata Manufacturing Co., Ltd. | 25722 |
75 |
| Koninklijke Philips N.V. | 25832 |
47 |
| Canon Inc. | 43768 |
35 |
| Robert Bosch GmbH | 44128 |
30 |
| TDK Electronics AG | 1010 |
21 |
| Continental Automotive GmbH | 4507 |
19 |
| FUJIFILM Corporation | 30512 |
17 |
| TDK Corporation | 6855 |
16 |
| Kyocera Corporation | 14335 |
15 |
| Boe Technology Group Co., Ltd. | 44004 |
15 |
| Texas Instruments Incorporated | 19663 |
14 |
| Brother Industries, Ltd. | 12842 |
14 |
| Epcos AG | 641 |
11 |
| Ricoh Company, Ltd. | 13346 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
10 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11127 |
10 |
| Vitesco Technologies GmbH | 2398 |
9 |
| Qualcomm Incorporated | 91997 |
8 |
| Analog Devices, Inc. | 3321 |
8 |
| Other owners | 756 |